【Android基础入门〖9〗】SimpleAdapter之二

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目录(?)[+]

1 MainActivity.java

  package com.myadapter;  
 import java.util.ArrayList;  
 import java.util.HashMap;  
 import android.app.Activity;  
 import android.app.AlertDialog;  
 import android.content.DialogInterface;  
 import android.os.Bundle;  
 import android.view.View;  
 import android.view.View.OnClickListener;  
 import android.view.ViewGroup;  
 import android.widget.AdapterView;  
 import android.widget.AdapterView.OnItemClickListener;  
 import android.widget.Button;  
 import android.widget.ListView;  
 import android.widget.SimpleAdapter;  
 import android.widget.TextView;  
 import android.widget.Toast;  
 public class MainActivity extends Activity {  
     @Override  
     protected void onCreate(Bundle savedInstanceState) {  
         super.onCreate(savedInstanceState);  
           
         //声明一个 ListView  
         ListView listview = new ListView(this);              
           
         //定义数组  数组内容是 HashMap  
         ArrayList<HashMap<String,Object>> list=new ArrayList<HashMap<String,Object>>();  
           
         //每一个HashMap 对应ListView 中 每一个 item 的数据  
         HashMap<String,Object>map=new HashMap<String, Object>();  
         map.put("Image", R.drawable.star);  
         map.put("Text1", "周杰伦");  
         map.put("Text2", "菊花台");  
         map.put("Button", "更多");  
         list.add(map);  
           
         map=null;  
         map=new HashMap<String, Object>();  
         map.put("Image", R.drawable.ic_menu_send);  
         map.put("Text1", "邓丽君");  
         map.put("Text2", "在水一方");  
         map.put("Button", "更多");  
         list.add(map);  
           
         map=null;  
         map=new HashMap<String, Object>();  
         map.put("Image", R.drawable.star);  
         map.put("Text1", "蔡琴");  
         map.put("Text2", "恰似你的温柔");  
         map.put("Button", "更多");  
         list.add(map);  
           
         //适配器  绑定数据  
         SimpleAdapter adapter=new SimpleAdapter(  
                 this,                             //上下文  
                 list,                             //要绑定的数据  
                 R.layout.item_layout,             //每一个 item 的布局  
                 new String[]{ "Text1",    "Text2",    "Button",    "Image"},    //HashMap 中的 键名  
                 new int[]{    R.id.text1,  R.id.text2, R.id.button, R.id.image})//分别对应 item 中控件 id,与上一个参数 的键名一一上下对应  
         {  
                     //在这个重写的函数里设置 每个 item 中按钮的响应事件  
                     @Override  
                     public View getView(int position, View convertView,ViewGroup parent) {  
                         final int p=position;  
                         final View view=super.getView(position, convertView, parent);  
                         Button button=(Button)view.findViewById(R.id.button);  
                         button.setOnClickListener(new OnClickListener() {  
                               
                             @Override  
                             public void onClick(View v) {  
                                   
                                 //警告框的写法  
                                 new AlertDialog.Builder(MainActivity.this)  
                                 .setTitle("More")  
                                 .setMessage("你选中了"+String.valueOf(p))  
                                 .setPositiveButton("确定", new DialogInterface.OnClickListener() {  
                                     public void onClick(DialogInterface dialog, int which) {  
                                         setTitle("点击了对话框上的确定按钮");   
                                     }  
                                 })  
                                 .setNeutralButton("中立" ,new DialogInterface.OnClickListener() {    
                                     public void onClick(DialogInterface dialog, int whichButton) {    
                                         setTitle("点击了对话框上的中立按钮");    
                                     }    
                                 })   
                                 .setNegativeButton("取消", new DialogInterface.OnClickListener() {    
                                     public void onClick(DialogInterface dialog, int whichButton) {    
                                         setTitle("点击了对话框上的取消按钮");    
                                     }    
                                 })  
                                 .create()  
                                 .show();  
                             }  
                         });  
                         return view;  
                     }  
         };  
         //绑定适配器  
         listview.setAdapter(adapter);          
           
         //设置背景颜色选择器  
         listview.setSelector(R.drawable.on_item_selected);  
           
         //设置焦点响应问题    同时要将 item 中的焦点 focusable 设置为 false  
         listview.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);  
           
         //设置 item 的监听事件  
         listview.setOnItemClickListener(new OnItemClickListener() {  
             @Override  
             public void onItemClick(AdapterView<?> parent, View view, int position, long id) {  
                   
                 //获得 item 里面的文本控件  
                 TextView text1=(TextView)view.findViewById(R.id.text1);  
                 Toast.makeText(getApplicationContext(), text1.getText().toString(), Toast.LENGTH_SHORT).show();  
             }  
         });  
           
         //设置显示的内容  
         setContentView(listview);  
     }  
 }  
 

2 ListView 之每一个 item的布局item_layout.xml

  <?xml version="1.0" encoding="utf-8"?>    
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    
     xmlns:tools="http://schemas.android.com/tools"    
     android:layout_width="match_parent"    
     android:layout_height="45dp"    
     android:orientation="horizontal"    
     tools:ignore="HardcodedText,NestedWeights" >    
     <ImageView    
         android:id="@+id/image"    
         android:layout_width="wrap_content"    
         android:layout_height="match_parent"    
         android:layout_weight="4"    
         android:contentDescription="头像"     
         android:src="@drawable/ic_menu_send"/>    
     <LinearLayout    
         android:layout_width="wrap_content"    
         android:layout_height="match_parent"    
         android:layout_weight="24"    
         android:orientation="vertical" >    
         <TextView     
             android:id="@+id/text1"    
             android:layout_width="match_parent"    
             android:layout_height="wrap_content"    
             android:layout_weight="1"    
             android:textColor="@color/blue"    
             android:text="王力宏"/>    
         <TextView     
             android:id="@+id/text2"    
             android:layout_width="match_parent"    
             android:layout_height="wrap_content"    
             android:textColor="@color/darkviolet"    
             android:layout_weight="1"    
             android:text="大城小爱"/>    
     </LinearLayout>    
     <Button     
         android:id="@+id/button"    
         android:layout_width="wrap_content"    
         android:layout_height="match_parent"    
         android:text="more"    
         android:layout_weight="1"    
         android:textColor="@color/darkorchid"    
         android:focusable="false"/>    
 </LinearLayout>   
 

3 ListView 之 item 颜色选择器 on_item_selected.xml （放在 drawable 文件夹里）

  <?xml version="1.0" encoding="utf-8"?>  
 <selector xmlns:android="http://schemas.android.com/apk/res/android" >  
     <item   android:state_focused="false"  
             android:drawable="@android:color/black"/>  
     <item   android:state_focused="true"  
             android:drawable="@android:color/darker_gray"/>  
 </selector>  
 

4 资源图片

4.1 ic_menu_send.png

4.2 star.png

5 颜色值 color.xml

  <?xml version="1.0" encoding="utf-8"?>  
 <resources>  
     <color name="white">#FFFFFF</color>                 <!--白色 -->  
     <color name="ivory">#FFFFF0</color>                 <!--象牙色 -->  
     <color name="lightyellow">#FFFFE0</color>           <!--亮黄色 -->  
     <color name="yellow">#FFFF00</color>                <!--黄色 -->  
     <color name="snow">#FFFAFA</color>                  <!--雪白色 -->  
     <color name="floralwhite">#FFFAF0</color>           <!--花白色 -->  
     <color name="lemonchiffon">#FFFACD</color>          <!--柠檬绸色 -->  
     <color name="cornsilk">#FFF8DC</color>              <!--米绸色 -->  
     <color name="seashell">#FFF5EE</color>              <!--海贝色 -->  
     <color name="lavenderblush">#FFF0F5</color>         <!--淡紫红 -->  
     <color name="papayawhip">#FFEFD5</color>            <!--番木色 -->  
     <color name="blanchedalmond">#FFEBCD</color>        <!--白杏色 -->  
     <color name="mistyrose">#FFE4E1</color>             <!--浅玫瑰色 -->  
     <color name="bisque">#FFE4C4</color>                <!--桔黄色 -->  
     <color name="moccasin">#FFE4B5</color>              <!--鹿皮色 -->  
     <color name="navajowhite">#FFDEAD</color>           <!--纳瓦白 -->  
     <color name="peachpuff">#FFDAB9</color>             <!--桃色 -->  
     <color name="gold">#FFD700</color>                  <!--金色 -->  
     <color name="pink">#FFC0CB</color>                  <!--粉红色 -->  
     <color name="lightpink">#FFB6C1</color>             <!--亮粉红色 -->  
     <color name="orange">#FFA500</color>                <!--橙色 -->  
     <color name="lightsalmon">#FFA07A</color>           <!--亮肉色 -->  
     <color name="darkorange">#FF8C00</color>            <!--暗桔黄色 -->  
     <color name="coral">#FF7F50</color>                 <!--珊瑚色 -->  
     <color name="hotpink">#FF69B4</color>               <!--热粉红色 -->  
     <color name="tomato">#FF6347</color>                <!--西红柿色 -->  
     <color name="orangered">#FF4500</color>             <!--红橙色 -->  
     <color name="deeppink">#FF1493</color>              <!--深粉红色 -->  
     <color name="fuchsia">#FF00FF</color>               <!--紫红色 -->  
     <color name="magenta">#FF00FF</color>               <!--红紫色 -->      
     <color name="red">#FF0000</color>                   <!--红色 -->  
     <color name="oldlace">#FDF5E6</color>               <!--老花色 -->  
     <color name="lightgoldenyellow">#FAFAD2</color>     <!--亮金黄色 -->  
     <color name="linen">#FAF0E6</color>                 <!--亚麻色 -->  
     <color name="antiquewhite">#FAEBD7</color>          <!--古董白 -->  
     <color name="salmon">#FA8072</color>                <!--鲜肉色 -->  
     <color name="ghostwhite">#F8F8FF</color>            <!--幽灵白 -->  
     <color name="mintcream">#F5FFFA</color>             <!--薄荷色 -->  
     <color name="whitesmoke">#F5F5F5</color>            <!--烟白色 -->  
     <color name="beige">#F5F5DC</color>                 <!--米色 -->  
     <color name="wheat">#F5DEB3</color>                 <!--浅黄色 -->  
     <color name="sandybrown">#F4A460</color>            <!--沙褐色 -->  
     <color name="azure">#F0FFFF</color>                 <!--天蓝色 -->  
     <color name="honeydew">#F0FFF0</color>              <!--蜜色 -->  
     <color name="aliceblue">#F0F8FF</color>             <!--艾利斯兰 -->  
     <color name="khaki">#F0E68C</color>                 <!--黄褐色 -->  
     <color name="lightcoral">#F08080</color>            <!--亮珊瑚色 -->  
     <color name="palegoldenrod">#EEE8AA</color>         <!--苍麒麟色 -->  
     <color name="violet">#EE82EE</color>                <!--紫罗兰色 -->  
     <color name="darksalmon">#E9967A</color>            <!--暗肉色 -->  
     <color name="lavender">#E6E6FA</color>              <!--淡紫色 -->  
     <color name="lightcyan">#E0FFFF</color>             <!--亮青色 -->  
     <color name="burlywood">#DEB887</color>             <!--实木色 -->  
     <color name="plum">#DDA0DD</color>                  <!--洋李色 -->  
     <color name="gainsboro">#DCDCDC</color>             <!--淡灰色 -->  
     <color name="crimson">#DC143C</color>               <!--暗深红色 -->  
     <color name="palevioletred">#DB7093</color>         <!--苍紫罗兰色-->  
     <color name="goldenrod">#DAA520</color>             <!--金麒麟色 -->  
     <color name="orchid">#DA70D6</color>                <!--淡紫色 -->  
     <color name="thistle">#D8BFD8</color>               <!--蓟色 -->  
     <color name="lightgray">#D3D3D3</color>             <!--亮灰色 -->  
     <color name="lightgrey">#D3D3D3</color>             <!--亮灰色 -->  
     <color name="tan">#D2B48C</color>                   <!--茶色 -->  
     <color name="chocolate">#D2691E</color>             <!--巧可力色 -->  
     <color name="peru">#CD853F</color>                  <!--秘鲁色 -->  
     <color name="indianred">#CD5C5C</color>             <!--印第安红 -->  
     <color name="mediumvioletred">#C71585</color>       <!--中紫罗兰色 -->  
     <color name="silver">#C0C0C0</color>                <!--银色 -->  
     <color name="darkkhaki">#BDB76B</color>             <!-- 暗黄褐色 -->  
     <color name="rosybrown">#BC8F8F</color>             <!--褐玫瑰红-->  
     <color name="mediumorchid">#BA55D3</color>          <!--中粉紫色 -->  
     <color name="darkgoldenrod">#B8860B</color>         <!--暗金黄色 -->  
     <color name="firebrick">#B22222</color>             <!--火砖色 -->  
     <color name="powderblue">#B0E0E6</color>            <!--粉蓝色 -->  
     <color name="lightsteelblue">#B0C4DE</color>        <!--亮钢兰色 -->  
     <color name="paleturquoise">#AFEEEE</color>         <!--苍宝石绿 -->  
     <color name="greenyellow">#ADFF2F</color>           <!--黄绿色 -->  
     <color name="lightblue">#ADD8E6</color>             <!--亮蓝色 -->  
     <color name="darkgray">#A9A9A9</color>              <!--暗灰色 -->  
     <color name="darkgrey">#A9A9A9</color>              <!--暗灰色 -->  
     <color name="brown">#A52A2A</color>                 <!--褐色 -->  
     <color name="sienna">#A0522D</color>                <!--赭色 -->  
     <color name="darkorchid">#9932CC</color>            <!--暗紫色 -->  
     <color name="palegreen">#98FB98</color>             <!--苍绿色 -->  
     <color name="darkviolet">#9400D3</color>            <!--暗紫罗兰色 -->  
     <color name="mediumpurple">#9370DB</color>          <!--中紫色 -->  
     <color name="lightgreen">#90EE90</color>            <!--亮绿色 -->  
     <color name="darkseagreen">#8FBC8F</color>          <!--暗海兰色 -->  
     <color name="saddlebrown">#8B4513</color>           <!--重褐色 -->  
     <color name="darkmagenta">#8B008B</color>           <!--暗洋红 -->  
     <color name="darkred">#8B0000</color>               <!--暗红色 -->  
     <color name="blueviolet">#8A2BE2</color>            <!--紫罗兰蓝色-->  
     <color name="lightskyblue">#87CEFA</color>          <!--亮天蓝色-->  
     <color name="skyblue">#87CEEB</color>               <!--天蓝色 -->  
     <color name="gray">#808080</color>                  <!--灰色 -->  
     <color name="grey">#808080</color>                  <!--灰色 -->  
     <color name="olive">#808000</color>                 <!--橄榄色 -->  
     <color name="purple">#800080</color>                <!--紫色 -->  
     <color name="maroon">#800000</color>                <!--粟色 -->  
     <color name="aquamarine">#7FFFD4</color>            <!--碧绿色 -->  
     <color name="chartreuse">#7FFF00</color>            <!--黄绿色 -->  
     <color name="lawngreen">#7CFC00</color>             <!--草绿色 -->  
     <color name="mediumslateblue">#7B68EE</color>       <!--中暗蓝色 -->  
     <color name="lightslategray">#778899</color>        <!--亮蓝灰 -->  
     <color name="lightslategrey">#778899</color>        <!--亮蓝灰 -->  
     <color name="slategray">#708090</color>             <!--灰石色 -->  
     <color name="slategrey">#708090</color>             <!--灰石色 -->  
     <color name="olivedrab">#6B8E23</color>             <!--深绿褐色 -->  
     <color name="slateblue">#6A5ACD</color>             <!--石蓝色 -->  
     <color name="dimgray">#696969</color>               <!--暗灰色 -->  
     <color name="dimgrey">#696969</color>               <!--暗灰色 -->  
     <color name="mediumaquamarine">#66CDAA</color>      <!--中绿色-->  
     <color name="cornflowerblue">#6495ED</color>        <!--菊兰色 -->  
     <color name="cadetblue">#5F9EA0</color>             <!--军兰色 -->  
     <color name="darkolivegreen">#556B2F</color>        <!--暗橄榄绿 -->  
     <color name="indigo">#4B0082</color>                <!--靛青色 -->  
     <color name="mediumturquoise">#48D1CC</color>       <!--中绿宝石-->  
     <color name="darkslateblue">#483D8B</color>         <!--暗灰蓝色 -->  
     <color name="steelblue">#4682B4</color>             <!--钢兰色 -->  
     <color name="royalblue">#4169E1</color>             <!--皇家蓝 -->  
     <color name="turquoise">#40E0D0</color>             <!--青绿色 -->  
     <color name="mediumseagreen">#3CB371</color>        <!--中海蓝 -->  
     <color name="limegreen">#32CD32</color>             <!--橙绿色 -->  
     <color name="darkslategray">#2F4F4F</color>         <!--暗瓦灰色 -->  
     <color name="darkslategrey">#2F4F4F</color>         <!--暗瓦灰色 -->  
     <color name="seagreen">#2E8B57</color>              <!--海绿色 -->  
     <color name="forestgreen">#228B22</color>           <!--森林绿 -->  
     <color name="lightseagreen">#20B2AA</color>         <!--亮海蓝色 -->  
     <color name="dodgerblue">#1E90FF</color>            <!--闪兰色 -->  
     <color name="midnightblue">#191970</color>          <!--中灰兰色 -->  
     <color name="aqua">#00FFFF</color>                  <!--浅绿色 -->  
     <color name="cyan">#00FFFF</color>                  <!--青色 -->  
     <color name="springgreen">#00FF7F</color>           <!--春绿色 -->  
     <color name="lime">#00FF00</color>                  <!--酸橙色 -->  
     <color name="mediumspringgreen">#00FA9A</color>     <!--中春绿色 -->  
     <color name="darkturquoise">#00CED1</color>         <!--暗宝石绿 -->  
     <color name="deepskyblue">#00BFFF</color>           <!--深天蓝色 -->  
     <color name="darkcyan">#008B8B</color>              <!--暗青色 -->  
     <color name="teal">#008080</color>                  <!--水鸭色 -->  
     <color name="green">#008000</color>                 <!--绿色 -->  
     <color name="darkgreen">#006400</color>             <!--暗绿色 -->  
     <color name="blue">#0000FF</color>                  <!--蓝色 -->  
     <color name="mediumblue">#0000CD</color>            <!--中兰色 -->  
     <color name="darkblue">#00008B</color>              <!--暗蓝色 -->  
     <color name="navy">#000080</color>                  <!--海军色 -->  
     <color name="black">#000000</color>                 <!--黑色 -->  
 </resources>  
 